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Hello , so after my last frustuation of finder 167w getting broken , i got a board replacement and everything worked fine , yeasterday i have got myself a brand new hcigar vt75d , and it was acting a bit wonkey, its a parallel device but when i put both batteries in sometimes it doenst even turn on i have to open battery doors and change position of the batteries , then it starts working but not as expected , after nearly full discharge i have noticed that battery life was awful , so i just took out one of the batteries to check their voltages seperately and here it goes again ... one of the batteries were 3% while another one was sitting on a full 4.18v , so i charged them and tried to swap batteries in places , the same problem occured... the funny thing is i can take out and put in the same batteries inside but they show different voltage almost everytime... could it be a bad wiring / soldering issue ? Tried to charge it on usb , one battery got charged to 93% while another was sitting on 9% ( right where it was discharged) Im really upset , any help would be apreciated , thank you....
P.S. All the photos were taken at the same time , i have just swapped batteries in places
EDIT just checked both batteries in pico 25 show 81 and 82 % while the dna at the moment shows 61% with both batteries inserted